html,body{
    height: 100%;
}

body,p,h1,h2,h3,h4,h5,h6{margin:0;}

ul,ol{list-type:none; margin:0; padding:0;}

input,textarea,img,video,object{
    box-sizing: border-box;
}

img{
    display: inline-block;
}

ul,ol{
    padding-left: 0;
    /* 是一个比较好的值 */
}

button{
    padding:0 ;
    overflow: visible;
}

button::-moz-focus-inner{padding: 0}